No I don’t own any vintage bikes but yeah I check out in eBay every now and then. They have section of vintage bicycles and some of them are refurbished as well.
Same, I almost got a bike from the early 1900s for a great price, but someone bid a crazy high price and I was out of that auction soon after haha!
But yeah, I’ve been on the lookout for vintage anything really, but I keep an eye out for bike parts and any other important bike memorabilia from the past.